She has created a number of graphic novels, both as sole creator (such as Zombies Calling! and Friends with Boys) and as a collaborator (Nothing Could Possibly Go Wrong and Buffy: The High School Years), as well as serialized works like Demonology 101 and "The Adventures of Superhero Girl".

Since the beginning of Demonology 101, Hicks has completed a spinoff of the D101 character Sachs entitled A Distant Faith.[2] She also began work on a zombie-movie inspired comic called Zombies Calling,[3][4] as well as the dystopian comic Ice (originally published on Modern Tales).[5]

As part of her day job she has also contributed backgrounds to the George of the Jungle animated series[4] and created Jenny’s Brothers, a comic strip to the Halifax Chronicle-Herald.[6] She is currently drawing her original comic series, The Adventures of Superhero Girl, which is run weekly in Halifax's local free paper, The Coast, as well as on her own website.[7] Faith's most recently finished full-length graphic novel is Friends With Boys, which was published in February 2012 from First Second. She was also the co-writer for the graphic novel The Last of Us: American Dreams, along with Neil Druckmann.

On January 30, 2014, it was announced that Hicks would illustrate the first of two graphic novels written by young adult author Rainbow Rowell.[8] On July 25, 2014, Hicks won the 2014 Eisner Award for Best Publication for Kids for her work on The Adventures of Superhero Girl.[9]